Acute intermittent porphyria (AIP), commonly known as vampire disease, is a rare genetic metabolic disorder that causes severe pain and other debilitating symptoms when triggered. Phoenix ...

Lore about vampires and other ... the characteristics to symptoms of real diseases, from rabies to leukemia to tuberculosis. Pediatrician Michael Hefferon favors porphyria, a group of rare ...

It turns out that the vampire has long been associated with diseases like porphyria and lupus, both of which produce symptoms intensified by sun exposure and garlic. Bram Stoker’s “Dracula ...